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Institution

Naval Air Systems Command

GovernmentLexington Park, Maryland, United States
About: Naval Air Systems Command is a government organization based out in Lexington Park, Maryland, United States. It is known for research contribution in the topics: Avionics & Wind tunnel. The organization has 563 authors who have published 820 publications receiving 13569 citations.


Papers
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Journal ArticleDOI
TL;DR: The state-of-the-art of additive manufacturing (AM) can be classified into three categories: direct digital manufacturing, free-form fabrication, or 3D printing as discussed by the authors.
Abstract: This paper reviews the state-of-the-art of an important, rapidly emerging, manufacturing technology that is alternatively called additive manufacturing (AM), direct digital manufacturing, free form fabrication, or 3D printing, etc. A broad contextual overview of metallic AM is provided. AM has the potential to revolutionize the global parts manufacturing and logistics landscape. It enables distributed manufacturing and the productions of parts-on-demand while offering the potential to reduce cost, energy consumption, and carbon footprint. This paper explores the material science, processes, and business consideration associated with achieving these performance gains. It is concluded that a paradigm shift is required in order to fully exploit AM potential.

4,055 citations

Journal ArticleDOI
TL;DR: In this paper, the authors attempted to catalog and analyze the published fatigue performance data of an additively manufactured alloy of significant technological interest, Ti-6Al-4V, focusing on uniaxial fatigue performance, discussing failure mechanisms, defects, microstructure and processing parameters.

387 citations

Journal ArticleDOI
TL;DR: Using a transmission-spectrum-based method, the refractive index of a 50 μm thick sample of poly(methyl methacrylate) (PMMA) was measured as a function of wavelength to mitigate the effects of nonplane-parallel surfaces.
Abstract: Using a transmission-spectrum-based method, the refractive index of a 50 μm thick sample of poly(methyl methacrylate) (PMMA) was measured as a function of wavelength. To mitigate the effects of nonplane-parallel surfaces, the sample was measured at 16 different locations. The technique resulted in the measurement of index at several thousand independent wavelengths from 0.42 to 1.62 μm, with a relative RMS accuracy <0.5×10(-4) and absolute accuracy <2×10(-4).

200 citations

Journal ArticleDOI
TL;DR: A model for predicting complex collaborative processes as they arise in one-of-a-kind problem-solving situations to predict performance outcomes is presented and a set of propositions developed to guide research into how teams externalize cognition and build knowledge in service of problem solving are presented.
Abstract: Objective: This article presents a model for predicting complex collaborative processes as they arise in one-of-a-kind problem-solving situations to predict performance outcomes. The goal is to outline a set of key processes and their interrelationship and to describe how these can be used to predict collaboration processes embedded within problem-solving contexts. Background: Teams are increasingly called upon to address complex problem-solving tasks in novel situations. This represents a domain of performance that to date has been underrepresented in the research literature. Method: Multidisciplinary theoretical and empirical literature relating to knowledge work in teams is synthesized. Results: A set of propositions developed to guide research into how teams externalize cognition and build knowledge in service of problem solving is presented. First, a brief overview of macrocognition in teams is provided to distinguish the present work from other views of team cognition. Second, a description of the foundational theoretical concepts driving the theory of macrocognition in teams presented here is provided. Third, a set of propositions described within the context of a model of macrocognition in teams is forwarded. Conclusion: The theoretical framework described in this article provides a set of empirically testable propositions that can ultimately guide practitioners in efforts to support macrocognition in teams. Application: A theory of macrocognition in teams can provide guidance for the development of training interventions and the design of collaborative tools to facilitate knowledge-based performance in teams.

190 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20231
20222
202138
202026
201944
201838